Engine - Gaskets & Seals - Base Gaskets

121 products

Seal the deal with precision-fit gaskets designed for leak-free power.

Cometic Gasket C9989 Base Gaskets - 3 5/8in. Big Bore (S&S Cylinders) - Viton - .020in.

$36.56

2 pk. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for specified appl...

Cometic Gasket C9618 Base Gaskets - Fiber - 3 5/8in. Bore - .031in.

$21.20

H-D #16777-48. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for speci...

Cometic Gasket C10361 Base Gaskets - 1.010in. - Viton

$50.80

Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for specified application...

$17.38

Vertex gaskets are hand-selected to outperform OEM materials on imperfect surfaces. High-performance Interface MicroPore gasket material is utilized where applicable. Made in USA.Vehicle Fitment:20...

$17.93

5% Off

$21.64

~~$22.78~~

High-performance gaskets for hardcore racing junkies. Great for your dirtbike, snowmobile, ATV, PWC, or small engine. Will help extend the life of your prized possession. Innovative design, rugged ...

Cometic Gasket C9935 Base Gasket for 4.125in Bore S&S Super Sidewinder Plus - SLS - .010in

$36.56

Sold in packs of 2. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for ...

3% Off

$21.34

~~$21.95~~

$15.55

Cometic Gasket C9532 Base Gaskets - Big Bore - 3-5/8in. and 3-3/4in. Bore (2pk)

$37.85

3-5/8in. and 3-3/4in. Big Bore. .010in. Steel. H-D#16777-86S. Qty: 2. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may var...

Cometic Gasket C9100 Cylinder Base Gasket (2)

$36.56

STD Bore. Qty 2. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1998-2006 Harley D...

Cometic Gasket C9938 Base Gasket - SLS - 4.125in Bore - .010in

$36.56

Sold in a 2 pack. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for sp...

Cometic Gasket C9738 Base Gasket - SLS - 4in Bore - .020in

$36.56

Sold in packs of 2. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for ...

Cometic Gasket C9870 Base Gasket - SLS - 3 13/16in Bore - .020in

$36.56

Sold in packs of 2. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for ...

Cometic Gasket C9871 Base Gasket for 4.125in Bore S&S Big Twin - MLS - .010in

$36.56

Sold in packs of 2. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for ...

Cometic Gasket C9554 Base Gasket - SLS - 3 5/8in Bore - .020in

$36.56

Sold in packs of 2. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for ...

Cometic Gasket C10038 Cylinder Base Gaskets - 3 13/16in. Bore - Fronts for S&S Cylinders

$37.85

.020in. Viton Rubber Coated Steel. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and ...

S&S Cycle 930-0095 Base Gasket - S&S 3 7/16in. and 3 1/2in. Bore, .018in. Thick

$31.88

Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow out. Made in the USA. Made of Kevlar Premium material.Vehicle Fitment:1966-1969 Harley...

Cometic Gasket C9567-1 Cylinder Base Gasket - .031in. Fiber - Front - Standard Bore

$15.85

High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1948-1950 Harley Davidson E 1948-195...

James Gasket JGI-ST-16500127 Cylinder Base Gaskets

$34.06

5 Pack. Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:2015-2020 Harley Davidson XG500 Street 500

James Gasket JGI-16770-36-C Cylinder Head and Base Gasket Kit

$61.19

Genuine James kits include matching head and base gaskets. Made in the USA. Pair.Vehicle Fitment:1936-1937 Harley Davidson E 1941-1947 Harley Davidson E 1936-1947 Harley Davidson EL 1941-1947 Harle...

Cometic Gasket C8093 Base Gasket - Fiber .020 - 3.210mm Bore

$24.81

Cometic Gasket C8585 Base Gasket - .010in. Rubber Coated Steel

$39.19

Cometic Gasket C9025 Base Gasket - Copper - .020in

$24.94

Sold each. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for specified...

Cometic Gasket C8747 Base Gasket - .010in. Rubber Coated Steel - 81mm Bore with 13mm Studs

$39.56

28% Off

Cometic Gasket C8698 Base Gasket - .010in. Rubber Coated Steel

$27.21

~~$37.58~~

For spigot size of 2.925in.. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engine...

Cometic Gasket C9603-2 Cylinder Base Gaskets - .031in. High Density Fiber (2pk)

$17.52

OEM # 16774-72. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1972-1979 Harley Da...

48% Off

James Gasket 16500332 Cylinder Base Gasket

$43.31

~~$82.69~~

Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:2018-2020 Harley Davidson FLDE Deluxe 107 2018-2019 Harley Davidson FLFB Fat Boy 107 2018-2023 Harley Davi...

$16.11

$18.08

5% Off

$21.64

~~$22.78~~

$13.69

Cometic Gasket C9568-1 Cylinder Base Gasket - .031in. Fiber - Rear - Standard Bore

$15.85

OEM # 16777-48. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1948-1950 Harley Da...

James Gasket JGI-16774-21-X Metal Base Gasket - Standard Bore

$51.44

Genuine James base gaskets feature a steel base with silicone beading on both sides. Will not become brittle or split during assembly. Requires no gasket sealer. Made in the USA.Vehicle Fitment:193...

6% Off

Wiseco W5026 Base Gasket - 66.00-72.00mm

$37.54

~~$39.95~~

Premium materials. Produces the best sealing technology available. Exceeding OEM standards.Vehicle Fitment:1981-1983 Kawasaki KZ1000A/J 1982-1983 Kawasaki KZ1000R Lawson Replica

$23.16

4% Off

$21.90

~~$22.78~~

$40.31

is coated stainless steel standard thickness of 0.020in. for Kawasaki. Simple to install stainless and reusable base gasket, simply clean both mating surfaces and install. Gasket with metal core f...

S&S Cycle 930-0096 Base Gasket - S&S 3 5/8in. Bore, .018in. Thick

$31.88

Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow out. Made in the USA. Made of Kevlar Premium material.Vehicle Fitment:1966-1969 Harley...

5% Off

$20.89

~~$21.95~~

4% Off

$21.90

~~$22.78~~

5% Off

$20.89

~~$21.95~~

4% Off

$21.90

~~$22.78~~

Wiseco W5391 Base Gasket - Fiber - 63.75-81.00mm

$17.71

Premium materials. Produces the best sealing technology available. Exceeding OEM standards.Vehicle Fitment:1985 Yamaha FJ1100 1986-1993 Yamaha FJ1200

5% Off

$21.64

~~$22.78~~

5% Off

$21.64

~~$22.78~~

James Gasket JGI-16774-21 Cylinder Base Gasket - Front and Rear - Paper

$33.56

10 pack. Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:1941-1947 Harley Davidson F 1941-1947 Harley Davidson FL 1937-1947 Harley Davidson U 1937-1940 H...